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Cognomen Suwanai (สุวนัย , Suwanai
) , throughout the world, is quite a rare last name. The cognomen Suwanai is habitual in Eastern Asia, particularly Japan, where it is quite a rare surname. Very seldom, Suwanai is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| สุวนัย | Thailand |
| Suwanai | India, United States, Japan, Thailand |